Self-heating soldering-iron.



Patented sept. 25, |900.' H. Afnoss.' SELF HEATING SOLDERIANG IRUN(Application led Nov. 14, 1898.) (No Nudel.)

me Norms verras co. mammie., wnmnron. n. c.

NTTED STATES PATENT OFFICE.

HENRY A. ROSS, OF KANSAS CITY, MISSOURI.

SELF-HEATING SOLDERING-IIRON.

SPECIFICATION formingpart of Letters Patent No. 658,532, datedASeptember 25, 1900.

Application filed November 14, 1898. Serial No. 696 ,348. (No model.)

To all whom z'ft may aon/cern.:

Beit known that I, HENRY A. ROSS, of Kansas City, in the countyofJackson, in the State of Missouri, have invented certain new and usefulImprovements in Self Heating Soldering-Irons,of which the followingis afull,clear, and exact description, reference being had to theaccompanying drawings, which form a part of this specification.

My invention relates To improvements in self-heating soldering-irons inwhich by connection of the tip or soldering-point with a vapor-burnersupplied-with gasolene or other light hydrocarbon oil thesoldering-point is kept continually heated and ready for work, thusavoiding the waste of time necessary to changing the iron and giving thetool a facility in use in many places and under many circumstances whereit would be highly ineon venient,if notimpossible,to carrya plumbersfurnace for heating the irons; and my invention consists in certainfeatures of novelty hereinafter described, and pointed out in the claim.

Figure l represents an elevation of a soldering-iron embodyingmyimprovements and invention. Fig. 2 represents a View, partly incross-section, of the cup for holding the gasolene. Fig. 3 represents aview, partly in cross-section, showing the manner of connecting thesoldering tip with the vaporburner.

Similar numerals refer to similar parts throughout the several views.

l represents a vapor-burner, in which the oil or gasolene is vaporizedin passing through the tubular vaporizer 2 and in which the flow of theoil and-discharge of the vapor are controlled and regulated by theneedle-valve l1. Such vaporizer, provided with a needle-valve, being ofusual and familiar construction this part of the burner is not shown indetail.

3 represents a tube con nected with the vaporizer and having threadedupon its opposite end a soldering-tip 7. Said soldering-tip has formedwithin it a pocket 8, forming a combustion -chamber therein, and isprovided with the draft-openings 9, communicating with saidcombustion-chamber. Said tube 3 forms a mixing-chamber 3a and has cut orformed in it an air-gap 6, between the mixing-chamber 3 and thevaporizer, for the admission of air to the mixing-chamber, there to mixwith the vapor passing from the vaporizer into the same. It has also cutor formed in it an air-gap l0, between the mixing-chamchamber, beinghighly heated and raretied,

but not burned, has mixed with it a large amount of air entering at theair-gap 6, producing a gas or carbureted air, which enters saidcombustion-chamber in the tip at a high temperature and with highheating power. Upon said tube is provided a sleeve' 4, having theopenings 5. Said sleeve is arranged to slide over and cover the air-gap6 between the mixing-chamber and the Vaporizer, and for this reason whenthe tool is used in exposed places'(her e exposed tothe wind or tostrong currents of air) there is danger that the vapor passing from thevaporizeracross the air-gap will be blown aside and out at the air-gapand not pass into the mixingchamber.. The sleeve will prevent this,while still admittingacertainamountofairthrough the openings 5 to mixwith the Vapor; but when not used in such exposed places the sleeveshould be slipped back and the air-gap left open, as to obtain the mosteffective action ofthe tool a larger amount of air is required to mixwith the vapor than can pass through said openings.

It will be observed that when in operation as the gasolene is vaporizedin the vaporizer 2 and the vapor issues therefrom withconsiderable-force in crossing the air-gap 6 a quantity of air will bysuction be drawn in and in the mixing-chamber 3 will become mixed withthe rarefied'vaportherein, forming a gas or earbureted air of highheating power. This mixed vapor and air or earbureted air, thencecrossing the air-gap 10, will enter the combustion-chamber formed by thepocket 8 in the soldering-tip and is there ignited, the air-gap 10providing for the admission of such amount of air to the combus- IOOtion-chamber as is necessary to complete combustion therein, it beingfurther observed that by the arrangement of the air-gap 10 adjacent tothe combustion-chamber in the tip the combustion is confined to thiscombustiowchamber, and the heat therefrom is d, prevented by the air-gap10 from acting back' upon and in the mixing-chamber 3 to the extent ofproducing combustion `therein,i there being no combustion or flame inthe mixing-chamber, and the mixing-chamber 'is` thus fitted and adaptedto perform properly and at all times its office as a miXing-chamber.This result is one of the leading 'features and principal advantages ofmyinvention, for as there is no coinbustionor flame in l the mixi11g-cham ber the vapor becomes highly rarefied and thoroughly mixed withthe air,y coming in at the air-gap 6, `and the mixturel or carburetedair `enters the combustion-i cham ber of the tip in a condition for themost* effective action, and the carburetedair be ing of highheating-power and the combus#V tion taking place in and being confinedtothe; v

tip the result is most effective for heating the' Tip with the leastconsumption and least waste of material. 12 represents a vesselcontaining gasolene and is provided with an extension 13, forming thehandle of the tool.

` 14 represents a tube connecting'the vesselA with the burner throughthe ordinary gas union l5, upon which the burner and its tip` turn,adapting it for use in the most con venient position. As shown in Fig.2, said tube extends within the vessel and is provided with the wicking16. Also within the` vessel is arranged the conical or funnely shapedpartition 17, the purpose of which isj lo retain the oil around the tubewhen the` u tool is used in such position that the vessel standsinverted. This partition may, 110W-, ever, be omitted and the wickextended back into the extension 13, it being found in practice that theWick will take up enough of the oil to supply the burner.

18 represents an air-bulb having the usual valves and communicating withthe stein 13 of theoil vessel `for supplying air-pressure upon the oilin the vessel, and thus supply a desired pressure to insure properfeeding of `the burner, a valve 19 beingiprovided to close thecommunication and maintain the pressure. The air-b ulb and itsconnections, being old and Well known, are not shown in` detail. y Bythis construction and arrangement is provided a solderingiron that isself-conrained and always ready and convenient for use and when in useis kept `constantly and uniformly heated, thus `avoiding the annoy-'ance met in the ordinary iron as it begins to get cold and also`savingthe trouble and time in changingand heating `the irons.

Having thus fully described my improve- `ments,`what I claimas'myinvention, and desire to secure by Letters Patent, is-

A self-heating soldering-iron consisting of the combination with avapor-burner, and a soldering-tip secured upon and forming part of theburner, of `an oil vessel, a tube conuiectingsaid vessel with the burnerand extending 'within `the vessel, `a cone or funnel shaped partitionarranged within said vessel, and an extension on said vessel forminga`handle Wherewith Vto handle the tool, substantially as Set forth.

HENRY A. ROSS. `Witnessesz HARRY E. ROLAND, M. A. JONES.

